update

ChunkMesh.cs

@@ -1,4 +1,5 @@
-using System;
+using OpenTK.Graphics.OpenGL4;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -10,22 +11,36 @@ namespace Voxel
     {
         public int X;
         public int Y;
-        public byte[] PackedData;
-        public bool NeedsUpdate = true;
+        private byte[] _packedData;
+        public bool NeedsUpdate = false;
         public int Length = 0;
+        private List<FaceData> _faces;
+        public int SSBO;
 
         public ChunkMesh(int x, int y)
         {
-            PackedData = new byte[0];
+            _packedData = new byte[0];
             X = x;
             Y = y;
+            SSBO = GL.GenBuffer();
         }
 
         public void SetFaces(List<FaceData> faces)
         {
             Length = faces.Count;
-            PackedData = faces.SelectMany(f => f.Pack()).ToArray();
+            _faces = faces;
             NeedsUpdate = true;
         }
+
+        public byte[] GetPackedData()
+        {
+            if (NeedsUpdate)
+            {
+                _packedData = _faces.SelectMany(f => f.Pack()).ToArray();
+                NeedsUpdate = false;
+            }
+
+            return _packedData;
+        }
     }
 }